Abu Dhabi's sovereign wealth fund is engaged in discussions with adviser PJT Park Hill for a possible sale of about $2 billion of its stakes in private equity funds, Bloomberg News reported, citing people familiar with the matter.

Abu Dhabi Investment Authority's move is in line with its increasing focus on direct investments, according to the people. One of the sources said marketing to potential buyers is likely to begin within weeks, the news outlet added.

Representatives for the fund and PJT declined a request for comment by the publication.